If those figures were representative of England as a whole, it would mean that approximately 120 people would have caught the virus in hospital and over 30 would have died.
Swine flu is still considered a major threat, having killed more people last winter than any other type. It is one of three strains covered by this year's seasonal vaccine, which is available to all over 65s, those of any age in 'at risk' groups, and NHS staff.
There is intense concern at the Department of Health that too few doctors and nurses are getting themselves vaccinated, and that they could be a significant source of infection among the ill, who are most likely to suffer severe consequences from flu and even die.
Only a third (34.7 per cent) of frontline NHS staff opted to receive the jab last winter, despite it being available free of charge to them.